Trolley



Jan. 8, 1929. 1598,5913

A. L. HENRY ET AL TROLLEY Filed Feb. 25, 1927 4 zjwumtoz I aAndrewLHenrq GiIesSMoare- Patented Jan. 19 29.

ANDREW I. HENRY AND GILES S. MOORE, OF INDIANAPOLIS, INDIANA, ASSIGNORS TO TROLLEY. SHOE-WHEEL COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORA- 'IION OF INDIANA.

, TROLLEY.

Application filed February 25; 1927. Serial No. 170,968.

Our present invention Consists in certain improvements in the details of construction and arrangements of parts of trolley shoewheels of that type particularly lllustrated in our Patent 1,604,162, granted October 26, 1926, whereby certain advantages are obtained in the construction and use of the device all as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings which are made a part'hereof'and on whlch similar reference characters indicate similar parts,

Figure 1 is a side elevation of our improved trolley with portions broken away to show the construction more clearly,

Figure 2, a similar view of the trolley 1n another position,

-Figure 3, a detail cross-section on the dotted line 3-3 in Figure 1, and

Figure 4, a cross-section on the dotted l1ne H in Figure 1.

In said drawings the portions marked 10 indicate a harp having forks 11 of a conventional character, or of any desired construction adapted to operate with our improved trolley. At its upper end said harp has a bearing pin 12 on which the trolley 1s mounted to pivot between the branches of said harp.

The trolley consists of a casting or base 15 of substantially rectangular form having an eye 16 with an appropriate bearing surface by which it is journalled on the pin 12. On two of its sides it has faces which extend at right angles to each other, the upper face being recessed, as best shown in Figure 3. In this recess is mounted a bearing shoe 17 which is formed to fit in said recess and be secured therein by cotter-pins 18 as shown. The rear end 19 of said shoe is formed square or to extend at right anglesvwith the contact face to a point 27 from which a projection 20 extends beyond the cotter-pin and rests upon the face of the recess, asbest shown in Fig. 1.

Said base or casting 15 has a face 21 at right angles with the face of the recess in which shoe 17 is mounted and has a wheel 22 journalled on a pin 23 in the lower corner, as when the trolley is in normal position, as shown in Fig. 1. The outer face of said wheel 23 is substantially in the same plane as the face 21 between the flanges on the adjacent edge of the body 15.

Copper contact plates 24 are riveted by rivets 25 to the sides of shoe 17 and extend down around the eye, being formed with perforations which register with said eye and through which the journal pin 1-2 extends. The lower ends of said plates are adapted to spring outwardly so that when the parts are drawn together a good electrical contact is established between the branches of the harp, said shoe and trolley wire 30.

The vertical face '19 atthe end of the sho terminates at an angle 27, which angle marks the point to which the shoe is adapted to wear before its exchange for another shoe. By this form the relationship between the point of contact between the wire and shoe and the axis of the shoe is maintained, as in our aforementioned patent.

The trolley herein shown and thus clescribed is in the main substantially the same as that forming the subject matter of our above mentioned Letters Patent. In the case of our foriner'trolley, however, when it becomes worn to the limit prescribed it is necessary to replace the trolley shoe-wheel with a new one. In the present construction it only becomes necessary to remove the shoe 1? and replace it with a new one, the shoe 17 being made in numbers to fit one in the place of another, so that by removing the cotter-pins 18 an old shoe may be readily taken out and a backward direction the trolley will turn upon pivot 12, as indicated in Fig. 2, and thus bring the wheel 22 into contact with the trolley wire 30. The surface 21 may also come to position where it will rest on the under side of the trolley wire. Thus weprovide for the safe and easy reverse movement of the trolley on the wire and at the same time insure sufiicient electrical contact for the purpose.

It will be obvious to those skilled in the art that various changes may be made in our device without departing from the spirit of our invention, and we, therefore, do not limit ourselves to what is shown in the drawings 7 and described in the specification but only vention, what We claim as new and desire to secure by Letters Patent, is:

1. A trolley comprising a body having a bearing face formed on one side with a heel journa'lled adjacent thereto and with the bearing face of the wheel substantially in line with said bearing face, a recess formed one side at right angles thereto, a separate shoe removably mounted in said recess and having a bearing face disposed substantially at right angles. to said first-mentioned beau ing face, and contact plates attached to said shoe and extending into the joint between said shoe and the harp on which it is mounted, substantially as set forth.

2. In a trolley the combination of a harp,

a body portion pivoted on said harp, a removable shoe mounted on said body portion, contact plates secured to'said removable shoe and extending across the pivot point and having apertures registering with the pivot apertures in the body and the harp, means for securing said parts together to pivot and also establish a contact between them, said body being formed with another bearing face extending substantially at right angles to the bearing face in said 'shoe, substantially as set forth.

i 3. A trolley shoe Wheel of the class described having a wearing shoe reinovably mounted therein and carrying contact plates for making electrical connection with the harp, and a wheel forming a part of a bearing face on a line substantially at right angles with the bearing face of said shoe, sub-' stantially as set forth; V

In witness whereof, we have hereunto set our hands at Indianapolis, Indiana, this 23rd day of February, A. D. nineteen hundred and twenty-seven.

ANDREW L. HENRY. GILES S. MOORE. 

